/*
 * Copyright (c) 2023, Alibaba Group Holding Limited;
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
#include <algorithm>
struct size_info {
    std::size_t total;
    std::size_t size_cnt;
    std::size_t max_size;
    constexpr size_info &operator+=(const size_info &other) {
        this->total += other.total;
        this->size_cnt += other.size_cnt;
        this->max_size = (std::max)(this->max_size, other.max_size);
        return *this;
    }
    constexpr size_info operator+(const size_info &other) {
        return {this->total + other.total,
                this->size_cnt += other.size_cnt,
                (std::max)(this->max_size, other.max_size)};
    }
};